<template>
    <div class="header">
        <!-- 折叠按钮 -->
        <div class="collapse-btn" @click="collapseChage">
            <i class="el-icon-menu"></i>
        </div>
        <div class="logo">定时任务管理中心</div>
        <div class="header-right">
            <div class="header-user-con">
                <!-- 用户头像 -->
                <!--<div class="user-avator"><img :src="userImg"></div>-->
                <!-- 用户名下拉菜单 -->
                <el-dropdown class="user-name" trigger="click" @command="handleCommand">
                    <span class="el-dropdown-link">
                        {{username}} <i class="el-icon-caret-bottom"></i>
                    </span>
                    <el-dropdown-menu slot="dropdown">
                        <a @click="userInfo" >
                            <el-dropdown-item>{{username}}</el-dropdown-item>
                        </a>
                        <a href="https://gitee.com/heanny/python_vue_demo-scheduler" target="_blank">
                            <el-dropdown-item>项目仓库</el-dropdown-item>
                        </a>
                        <el-dropdown-item divided command="logout">退出登录</el-dropdown-item>
                    </el-dropdown-menu>
                </el-dropdown>
            </div>
        </div>
    </div>
</template>
<script>
    import bus from '../common/bus'
    import {removeToken,getUserinfo} from '../common/auth'

    export default {
        data () {
            return {
                collapse: false,
                name: 'default',
                message: 0
            }
        },
        computed: {
            username () {
                // let username = localStorage.getItem('ms_username')
                let username = getUserinfo()['name']
                return username ? username : this.name
            },
        },
        methods: {
            userInfo(){
                this.$router.push('/user/info')
            },
            // 用户名下拉菜单选择事件
            handleCommand (command) {
                if (command === 'logout') {
                    // localStorage.removeItem('ms_username')
                    removeToken()
                    this.$router.push('/login')
                }
            },
            // 侧边栏折叠
            collapseChage () {
                this.collapse = !this.collapse
                bus.$emit('collapse', this.collapse)
            },
            // 全屏事件
            handleFullScreen () {
                let element = document.documentElement
                if (this.fullscreen) {
                    if (document.exitFullscreen) {
                        document.exitFullscreen()
                    } else if (document.webkitCancelFullScreen) {
                        document.webkitCancelFullScreen()
                    } else if (document.mozCancelFullScreen) {
                        document.mozCancelFullScreen()
                    } else if (document.msExitFullscreen) {
                        document.msExitFullscreen()
                    }
                } else {
                    if (element.requestFullscreen) {
                        element.requestFullscreen()
                    } else if (element.webkitRequestFullScreen) {
                        element.webkitRequestFullScreen()
                    } else if (element.mozRequestFullScreen) {
                        element.mozRequestFullScreen()
                    } else if (element.msRequestFullscreen) {
                        // IE11
                        element.msRequestFullscreen()
                    }
                }
                this.fullscreen = !this.fullscreen
            }
        },
        mounted () {
            if (document.body.clientWidth < 1500) {
                this.collapseChage()
            }
        }
    }
</script>
<style scoped>
    .header {
        position: relative;
        box-sizing: border-box;
        width: 100%;
        height: 70px;
        font-size: 22px;
        color: #fff;
    }

    .collapse-btn {
        float: left;
        padding: 0 21px;
        cursor: pointer;
        line-height: 70px;
    }

    .header .logo {
        float: left;
        width: 250px;
        line-height: 70px;
    }

    .header-right {
        float: right;
        padding-right: 50px;
    }

    .header-user-con {
        display: flex;
        height: 70px;
        align-items: center;
    }

    .btn-fullscreen {
        transform: rotate(45deg);
        margin-right: 5px;
        font-size: 24px;
    }

    .btn-bell, .btn-fullscreen {
        position: relative;
        width: 30px;
        height: 30px;
        text-align: center;
        border-radius: 15px;
        cursor: pointer;
    }

    .btn-bell-badge {
        position: absolute;
        right: 0;
        top: -2px;
        width: 8px;
        height: 8px;
        border-radius: 4px;
        background: #f56c6c;
        color: #fff;
    }

    .btn-bell .el-icon-bell {
        color: #fff;
    }

    .user-name {
        margin-left: 10px;
    }

    .user-avator {
        margin-left: 20px;
    }

    .user-avator img {
        display: block;
        width: 40px;
        height: 40px;
        border-radius: 50%;
    }

    .el-dropdown-link {
        color: #fff;
        cursor: pointer;
    }

    .el-dropdown-menu__item {
        text-align: center;
    }
</style>
